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Biol Res Nurs. 2007 Jul;9(1):81-9.

Measuring tobacco smoke exposure among smoking and nonsmoking bar and restaurant workers.

Author information

  • 1University of British Columbia, Vancouver, British Columbia. chizimuzo.okoli@nursing.ubc.ca

Abstract

PURPOSE:

This study assesses the validity of hair nicotine as a biomarker for secondhand smoke (SHS) exposure. Although most biomarkers of tobacco-smoke exposure have a relatively short half-life, hair nicotine can measure several months of cumulative SHS exposure.

DESIGN:

A cross-sectional study of hospitality-industry workers.

METHOD:

Hair samples were obtained from 207 bar and restaurant workers and analyzed by the reversed-phase high-performance liquid chromatography with electrochemical detection (HPLC-ECD) method. Self-reported tobacco use and sources of SHS exposure were assessed.

FINDINGS:

Higher hair-nicotine levels were associated with more cigarettes smoked per day among smokers and a greater number of SHS-exposure sources among nonsmokers. Number of SHS exposure sources, gender, number of cigarettes smoked per day, and type of establishment predicted hair-nicotine levels.

DISCUSSION:

Hair nicotine is a valid measure of SHS exposure. It may be used as an alternative biomarker to measure longer term SHS exposure.

PMID:
17601859
[PubMed - indexed for MEDLINE]
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